Alarm device for gasolene-tanks.



J. G. STONE.

ALARM DEVICE FOR GASOLENE TANKS.

APPLIGATION FILED mum, 1012.

1 wi efi Pzmmted Sept. 2, 1913,

Witnesses JOE C. STONE, OF TIPTON, INDIANA.

ALARM DEVICE FOR GASOLENE-TANKS.

Specification of Letters Patent.

Patented Sept. 2, 1913..

Application filed March 7, 1912. Serial No. 682,148.

To allwhom it may concern Be it known that I, Jon C. S'roNE, a citizenof the United States, residing at Tipton, in the county of Tipton andState of Indiana, have invented certain new and useful Improvements inAlarm Devices for Gasolene Tanks, of which the following is aspecification.

This. invention relates to alarm devices for gasolene tanks orreservoirs, and has for its primary object to provide a simple,efficient and positively acting device of this character which isparticularly designed for use in connection with the gasolene tank of amotor driven vehicle.

Another object of the invention resides in the provision of a tubularcasing arranged within the gasolene tank, a conducting pipe connectedthereto, said casing having spaced outlet ports for the fluid and arotary valve member arranged within said casing and having a port toaline with one of the outlet ports of the casing, whereby the gasoleneis maintained within the tank at a fixed depth.

Another and more specific object of the invention resides in theprovision of a tubular casing having upper and lower outlet ports, arotary valve member provided with a single port to aline with one of theports in said casing, and a reticulated fabric surrounding said casingto prevent sediment conveyed in the fluid from passing through saidports.

v A still further object of the invention is to provide an alarm devicefor the above purpose, which is simple in construction, may beeconomically manufactured and is also eflicient and positive in actionto notify the operator that the supply of gasolene is almost exhausted.

With the above and other objects in view, my invention consists in theconstruction, combination and arrangement of the several parts, all aswill hereinafter be more fully escribed.

Figure 1 is a section through the gasolene tank having my improved alarmdevice therein, the reticulated guard being partly broken away. Fig. 2is a vertical section thereof. Fig. 3 is a perspective view of the alarmdevice.

Referring in detail to the drawings, 5 designates a tank or reservoirwhich may be of rectangular or cylindrical form and is preferably,though not necessarily, con structed of sheet metal. The bottom wall ofthis tank is provided with an opening, through which a nipple extension8 formed upon a base plate 7 projects. To one end of this nipple aconducting hose or pipe 9 is threaded or otherwise suitably connected.This base plate is securely riveted to the bottom of the tank orreservoir as shown and is provided with a central tubular boss 10, whichis interior threaded to receive the lower .end of a vertically disposedtubular casing 11; Upon the upper end of this casing, an annular head 12is integrally formed, and said casing is also provided with a shortextension 13 projecting above said head. The casin 11 has a port 14 inits wall beneath the liead 12, and adjacent to the lower end of saidtubular casing a second port 15 is provided. A bushing 16 is disposedthrough an opening provided in the top wall of the tank or reservoir 5and a tubular valve stem or red 17 is disposed through said bushin andhas its lower end extending Within the tubular valve casing 11. Thislower end portion of the rotary valve rod 17 is provided with screwthreads 18 which engage the threads 19'providedupon the inner wall ofthe casing 11 between the upper and lower ports 14 and 15 respectively.The tubular valve stem 17 is provided with a single port 18, and uponthe upper end of this stem above the supply tank, a circular head piece19 is formed, the periphery of which is preferably milled or knurled,whereby the same may be readily turned and the valve stem quicklyrotated to thread the same downwardly or upwardly within the casing 11.By means of this arrangement of parts, it will be readily understoodthat when the valve stem 17 is screwed downwardly Within the casing 11,and the port 18 of said stem brought into register with the upper port14 in the valve casing, while the level of the gasolene' or othercombustible fluid: within the tank is above these ports, the fluidwillcontinue to flow outwardly'through the valve and into the conductingpipe 9. When the gasolene reaches these registering ports, the flowofthe gasolene from the tank gradually lessens until it entirely ceases.The operator of the 7 vehicle is thus warned that the supply of.gasolene is almost exhausted. If he is within convenient reach of asupply station where an additional supply of gasolene may .be obtained,the operator will rotate the tubular valve stem or rod 17 so as to movethe same upwardly through the valve casing 11 until the lower end ofsaid stem is disposed above the lower port 15 of the valve casing, asshown in Fig. 2 of the drawing. The flow of the gasolene from the tanknow 'continues so that the machine may be again operated until the supplstation is reached.

In the upper end 0 the tubular valve stem 17 a nipple 20 is threaded,said nipple being provided with a longitudinal bore 21 whereby the airmay be admitted to the interior of the stem. The, upper end of thisnipple is threaded to receive a suitable closure cap 22 which covers theupper end of-the bore 21 and prevents dirt or other foreign matter fromentering the same.

Frequently the gasolene will contain a considerable amount ofsedimentary matter,

and in order to prevent the same from entering. the conducting pipethrough the ports of the valve casing, I provide a cylindrically formedreticulated guard 28, the upper and lower ends of said guard beingsuitably secured to the annular head 12 and the base plate 7respectively as shown in Figs. 1 and 2. This guard is of fine mesh wireso that foreign materials contained in the gasolene are prevented fromentering through the same and finding their way into the conducting pipe9, whereby the proper combustion of the fluid is assured.

By means of the construction hereinbefore set forth the lead pipe andcarbureter may-be cleaned out. The ports being closed and the cap 22removed, the nipple of a tire pump may be attached to the nipple 20 andair forced through the. pipe and carbureter from the pump; Anotheradvantage of this invention is that by reason of its constructiongasolene may be shut off at the top of the tank instead of at thebottom, which is in the machine.

From the foregoing, it is believed that the construction and manner ofoperation of my alarm device will be fully understood. Thr various partsthereof may be easily and quickly arranged within gasolene tanks orreservoirs now in use upon motor driven vehicles Without requiring anymaterial change in their construction, it being simin practicaloperation.

of the invention, it will be obvious that the same can be inexpensivelymanufactured, and Is also extremely While I have shown the actualconstruetion and arrangement of the various parts,

it-will be understood that the invention is susceptible of considerablemodification without departing from the essential features orsacrificing any of the advantages thereof.

durable, and eificient What I claim as new and desire to secure by U. S.Letters-Patent, is

l. The combination with a tank or reservoir, of a vertically disposedtubular valve casing opening through the bottom of the reservoir, and .avertically disposed. tubular valve stem threaded at its lower end withinsaid casing, the upper end of said valve stem being rotatably disposedthrough the upper wall of the reservo1r,'said casing having upper andlower discharge ports adapted to be closed by said valve stem, the valvestem being formed with a port adapted for registration with-the firstmentioned discharge port, at-which time the second mentioned port isclosed, an outward movement of the valve causing the first mentionedport to be; closed and the second mentioned port to be opened.

' 2. The combination with a tank, of a vertically disposed valve casingopening through. the bottom of said tank, a tubular valve stemprojecting into said valve casing and open at its lower end, the. valvecasing being formed with an upper discharge port and a lower dischargeport, the valve stem being formed with a port adapted to register withthe first mentioned discharge port, at

which time the lower discharge port is' closed, and means for moving thevalve stem outwardly, whereby the first mentioned discharge port isclosed and the second mentioned discharge port opened.

3. The combination with a reservoir, of a vertical tubular casing withinsaid reservoir, said casing projecting through an opening in the bottomthereof, a tubular valve stem threaded at its lower end within saidcasing and projecting through an opening in the top of the reservoir, amilled head formed upon the outer end of said valve stem, whereby thesame may be rotated, said casing being formed with upperv and lowerdischarge'ports, the valve stem being formed with a port adapted toregister with said 1,07%,371 iln testimony whereof I affix my signature1n presence of two wltnesses.

J OE C. STONE.

lqrper discharge port at which time the valve stem closes the lowerdischarge port, m outward movement of the valve stem serving to closethe upper discharge port and open the lower discharge port, and meanswhereby a pump may be connected to the upper end of the valve stem forforcing air through said stem.

Witnesses:

JAMES Moon, EARL H. THOMPSON.

